The bubbling does seem a bit like bubble formations in both John Deacons and Caithness flower in the rain paperweights. And the flower does have that Scottish "feel" to it. As for the possibility that this could be a Chinese weight, well, hope does spring eternal, but that attribution is doubtful.
And, the price you paid for it is glorious, especially for you. $9.99. Wow!
I like the California concept, but there are numerous little-known glass artists all over the United States, especially in Oregon and Vermont, many of whom are crafting some paperweights. Ashland, Oregon, home of a famed west coast Shakespeare Festival, has numerous glass artisans. In Vermont, people like Peter Muller are doing extraordinary paperweights. And don't forget the Canadian glasscrafters. Much of their work is sold in the U.S., and many are making paperweights.
Yes, it does stagger the imagination that the weight is not signed.